EP1616424A4 - MULTICHANNEL QUADRATURE AMPLITUDE MODULATION WITH WIDE BAND OF CABLE TELEVISION SIGNALS - Google Patents

MULTICHANNEL QUADRATURE AMPLITUDE MODULATION WITH WIDE BAND OF CABLE TELEVISION SIGNALS

Info

Publication number
EP1616424A4
EP1616424A4 EP04760138A EP04760138A EP1616424A4 EP 1616424 A4 EP1616424 A4 EP 1616424A4 EP 04760138 A EP04760138 A EP 04760138A EP 04760138 A EP04760138 A EP 04760138A EP 1616424 A4 EP1616424 A4 EP 1616424A4
Authority
EP
European Patent Office
Prior art keywords
amplitude modulation
cable television
quadrature amplitude
television signals
wideband multi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04760138A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1616424A1 (en
Inventor
Monta Peter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RGB Networks Inc
Original Assignee
RGB Networks Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RGB Networks Inc filed Critical RGB Networks Inc
Publication of EP1616424A1 publication Critical patent/EP1616424A1/en
Publication of EP1616424A4 publication Critical patent/EP1616424A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/365—Modulation using digital generation of the modulated carrier (not including modulation of a digitally generated carrier)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
EP04760138A 2003-04-21 2004-04-21 MULTICHANNEL QUADRATURE AMPLITUDE MODULATION WITH WIDE BAND OF CABLE TELEVISION SIGNALS Withdrawn EP1616424A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46444703P 2003-04-21 2003-04-21
PCT/US2004/012488 WO2004095793A1 (en) 2003-04-21 2004-04-21 Wideband multi-channel quadrature amplitude modulation of cable television signals

Publications (2)

Publication Number Publication Date
EP1616424A1 EP1616424A1 (en) 2006-01-18
EP1616424A4 true EP1616424A4 (en) 2009-12-02

Family

ID=33310891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04760138A Withdrawn EP1616424A4 (en) 2003-04-21 2004-04-21 MULTICHANNEL QUADRATURE AMPLITUDE MODULATION WITH WIDE BAND OF CABLE TELEVISION SIGNALS

Country Status (5)

Country Link
US (1) US7068730B2 (zh)
EP (1) EP1616424A4 (zh)
CN (1) CN100589475C (zh)
CA (1) CA2523118C (zh)
WO (1) WO2004095793A1 (zh)

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CA2537280C (en) 2003-08-29 2014-04-01 Rgb Networks, Inc. Advanced, self-balancing video multiplexer system
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JP2005151481A (ja) 2003-11-20 2005-06-09 Fujitsu Ltd 送信方法及び送信装置
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US7826752B1 (en) * 2005-06-02 2010-11-02 Level 3 Communications, Llc Optical transmission apparatuses, methods, and systems
US7653364B2 (en) * 2005-11-07 2010-01-26 Staccato Communications, Inc. Local oscillator leakage relocation
US20080143885A1 (en) * 2006-12-14 2008-06-19 Analog Devices, Inc. Television upconverter structures
US20090135951A1 (en) * 2007-11-28 2009-05-28 Legend Silicon Corp Method and apparatus for power control techniques in an ofdm based receiver
WO2010001357A1 (en) * 2008-07-02 2010-01-07 Innovaradio S.A. A pre-distortion method and device to enhance the power utility of power amplifiers in wireless digital communication applications
WO2010071634A1 (en) * 2008-12-16 2010-06-24 Hewlett-Packard Development Company, L.P. Clock signals for dynamic reconfiguration of communication link bundles
EP2288048A1 (en) * 2009-08-21 2011-02-23 Panasonic Corporation Rotated multi-dimensional constellations for improved diversity in fading channels
US8237595B2 (en) * 2009-09-30 2012-08-07 Entropic Communications, Inc. Method and apparatus for bandpass digital to analog converter
WO2011058197A1 (en) 2009-11-16 2011-05-19 Innovaradio S.A. An adaptive digital pre-distortion method and device to enhance the power utility of power amplifiers in wireless digital communication applications
US8867928B2 (en) 2010-05-17 2014-10-21 Neophotonics Corporation Hybrid fiber coaxial network optical transport system with distortion control
US8488656B2 (en) * 2010-09-14 2013-07-16 Northrop Grumman Systems Corporation Oversampled synthesizer systems and methods
US8520774B1 (en) * 2010-12-23 2013-08-27 Arris Enterprises, Inc. Generation of radio frequency outputs
US8610514B2 (en) 2011-06-20 2013-12-17 Rgb Networks, Inc. Full spectrum modulator for digital television signals
CN102279374A (zh) * 2011-06-28 2011-12-14 华东师范大学 一种多通道磁共振成像信号并行传输方法
US8995569B2 (en) * 2011-12-30 2015-03-31 Samsung Electronics Co., Ltd. Quadrature digital-IF transmitter without inter-stage SAW filter and devices using same
KR101851712B1 (ko) * 2012-01-31 2018-06-11 삼성전자주식회사 디지털 시변 필터를 이용한 다채널 오디오 신호 변환 장치, 이를 포함하는 전자 시스템, 및 디지털 시변 필터를 이용한 다채널 오디오 신호 변환 방법
KR20130120727A (ko) * 2012-04-26 2013-11-05 한국전자통신연구원 해상 무선 통신에서의 멀티 대역 ｒｆ 신호 생성 방법 및 그 장치
CN103701751B (zh) * 2013-12-03 2017-01-11 长安大学 一种信道估计辅助的缩小搜索范围高阶qam解映射方法
CN105049120A (zh) * 2015-05-26 2015-11-11 陕西思普瑞通信设计咨询有限公司 一种通信传输方法和系统
US9806924B2 (en) * 2016-02-22 2017-10-31 Avago Technologies General Ip (Singapore) Pte. Ltd. Wireless transmitter using a wideband digital-to-analog converter for processing multiple channels in a digital radio-frequency signal
US10320481B2 (en) * 2016-07-13 2019-06-11 Space Systems/Loral, Llc Flexible high throughput satellite system using optical gateways
US9831933B1 (en) * 2016-08-10 2017-11-28 The United States Of America As Represented By Secretary Of The Navy Techniques and methods for frequency division multiplexed digital beamforming
CN107682023A (zh) * 2017-11-21 2018-02-09 锐捷网络股份有限公司 一种信息发射、接收装置和方法及无线访问节点

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WO1994021061A1 (en) * 1993-03-08 1994-09-15 Motorola Inc. A multi-channel digital transmitter and receiver
WO1996037062A1 (en) * 1995-05-20 1996-11-21 West End Systems Corp. Bidirectional point to multipoint network using multicarrier modulation
EP0772316A2 (en) * 1995-10-31 1997-05-07 Fujitsu Limited Asynchronous transfer mode type multimedia radiocommunication system
EP1056250A2 (en) * 1999-05-25 2000-11-29 Samsung Electronics Co., Ltd. Reduction of peak to average power ratio and of equaliser complexity in multicarrier transmission systems

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JP3848421B2 (ja) 1997-01-31 2006-11-22 秀男 村上 離散時間信号に対する多重化装置および多重化システムと、離散時間信号に対する多重化方法
US6546055B1 (en) 1998-01-12 2003-04-08 The Board Of Trustees Of The Leland Stanford Junior University Carrier offset determination for RF signals having a cyclic prefix
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JP2000022658A (ja) 1998-06-26 2000-01-21 Hitachi Denshi Ltd 複数搬送波変調方式
US6678318B1 (en) 2000-01-11 2004-01-13 Agere Systems Inc. Method and apparatus for time-domain equalization in discrete multitone transceivers
JP3371876B2 (ja) * 2000-01-26 2003-01-27 日本電気株式会社 自動直交制御機能を備えた復調器
US6928120B1 (en) * 2000-09-25 2005-08-09 Cingular Wireless Ii, Llc Methods and apparatus for use in reducing residual phase error in OFDM communication signals
KR100358120B1 (ko) * 2000-10-20 2002-10-25 한국전자통신연구원 동일대역 인접채널 방식의 디지털 오디오 방송 전송 시스템
NZ509688A (en) * 2001-02-01 2003-06-30 Ind Res Ltd Maximum likelihood sychronisation (estimating time delay) for wireless digital communications system using a pilot symbol
US6954505B2 (en) * 2001-03-29 2005-10-11 Texas Instruments Incorporated Discrete multitone modulation with reduced peak-to-average ratio using unloaded subchannels
US7164741B2 (en) 2001-05-09 2007-01-16 Signum Concept, Inc. Non-recursive resampling digital fir filter structure for demodulating 3G cellular signals
US7782970B2 (en) 2003-02-27 2010-08-24 Intel Corporation Apparatus and associated methods to introduce diversity in a multicarrier communication channel
CA2516427A1 (en) * 2003-02-28 2004-09-16 Rgb Networks, Inc. Cost-effective multi-channel quadrature amplitude modulation
CN100589475C (zh) 2003-04-21 2010-02-10 Rgb网络有限公司 有线电视信号的宽频带多通道正交振幅调制

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994021061A1 (en) * 1993-03-08 1994-09-15 Motorola Inc. A multi-channel digital transmitter and receiver
WO1996037062A1 (en) * 1995-05-20 1996-11-21 West End Systems Corp. Bidirectional point to multipoint network using multicarrier modulation
EP0772316A2 (en) * 1995-10-31 1997-05-07 Fujitsu Limited Asynchronous transfer mode type multimedia radiocommunication system
EP1056250A2 (en) * 1999-05-25 2000-11-29 Samsung Electronics Co., Ltd. Reduction of peak to average power ratio and of equaliser complexity in multicarrier transmission systems

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MULI KIFLE, MONTY ANDRO, MARK J. VANDERAAR: "An OFDM System Using Polyphase Filter and DFT Architecture for Very High Data Rate Applications", NASA-TM 2001-210813, 1 May 2001 (2001-05-01), XP002551794, Retrieved from the Internet <URL:http://gltrs.grc.nasa.gov/reports/2001/TM-2001-210813.pdf> [retrieved on 20091021] *
See also references of WO2004095793A1 *

Also Published As

Publication number Publication date
EP1616424A1 (en) 2006-01-18
CN1778084A (zh) 2006-05-24
US7068730B2 (en) 2006-06-27
CA2523118C (en) 2013-06-04
US20050238116A1 (en) 2005-10-27
WO2004095793A1 (en) 2004-11-04
CN100589475C (zh) 2010-02-10
CA2523118A1 (en) 2004-11-04

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Effective date: 20091216